EP 0096396 A1 19831221 - Stabilization of polycondensation catalysts.
Title (en)
Stabilization of polycondensation catalysts.
Title (de)
Stabilisierung von Polykondensationskatalysatoren.
Title (fr)
Stabilisation des catalyseurs de la polycondensation.
Publication
Application
Priority
US 38450082 A 19820603
Abstract (en)
The process for the stabilization of polycondensation catalysts and the stabilization composition used in such process for producing polyesters and copolyesters by the polycondensation of dicarboxylic acid and an aliphatic glycol using certain metal-containing polycondensation catalysts in conjunction with a stabilization composition formed as the reaction product of phosphoric acid, meta-phosphoric acid, superphosphoric acid or mixtures thereof and an aliphatic epoxide having between 2 and about 10 carbon atoms.
IPC 1-7
IPC 8 full level
C08G 63/00 (2006.01); C08G 63/78 (2006.01); C08G 63/82 (2006.01); C08G 63/85 (2006.01); C08K 5/521 (2006.01)
CPC (source: EP KR US)
C08G 63/183 (2013.01 - KR); C08G 63/85 (2013.01 - EP KR US); C08G 63/87 (2013.01 - KR); C08K 5/521 (2013.01 - EP US)
Citation (search report)
- [X] DE 1152259 B 19630801 - DU PONT
- [AD] US RE30554 E 19810324
- [XP] US 4361624 A 19821130 - SPIVACK BRUCE D
- [Y] HOUBEN-WEYL: "Methoden der organischen Chemie", vol. XII/2, 1964, page 307, Georg Thieme Verlag, Stuttgart, DE.
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0096396 A1 19831221; CA 1200049 A 19860128; JP S58219228 A 19831220; KR 840005164 A 19841105; US 4468489 A 19840828
DOCDB simple family (application)
EP 83105521 A 19830603; CA 427060 A 19830429; JP 9701983 A 19830602; KR 830002478 A 19830602; US 38450082 A 19820603